Add C Event Data Types

Author: helena-gregg

docs/build-insights/reference/sdk/c-event-data-types/translation-unit-type-data.md

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+---
+title: "TRANSLATION_UNIT_TYPE_DATA enum"
+description: "The C++ Build Insights SDK TRANSLATION_UNIT_TYPE_DATA enum reference."
+ms.date: "06/10/2021"
+helpviewer_keywords: ["C++ Build Insights", "C++ Build Insights SDK", "TRANSLATION_UNIT_TYPE_DATA", "throughput analysis", "build time analysis", "vcperf.exe"]
+---
+# TRANSLATION_UNIT_TYPE_DATA enum
+
+::: moniker range="<=msvc-140"
+
+The C++ Build Insights SDK is compatible with Visual Studio 2017 and above. To see the documentation for these versions, set the Visual Studio **Version** selector control for this article to Visual Studio 2017 or Visual Studio 2019. It's found at the top of the table of contents on this page.
+
+::: moniker-end
+::: moniker range=">=msvc-150"
+
+The `TRANSLATION_UNIT_TYPE_DATA` structure describes the type of the translation unit in the compiler front end pass.
+
+## Syntax
+
+```cpp
+typedef struct TRANSLATION_UNIT_TYPE_DATA_TAG
+{
+    int  TranslationUnitType;
+
+}  TRANSLATION_UNIT_TYPE_DATA;
+```
+
+## Members
+
+| Name | Description |
+|--|--|
+| `TranslationUnitType` | The type of this translation unit (either modules, header unit, or precompiled header). |
+
+## Remarks
+
+Used by the C SDK functions.
+
+::: moniker-end

docs/build-insights/reference/sdk/c-event-data-types/translation-unit-type.md

@@ -0,0 +1,30 @@
+---
+title: "TRANSLATION_UNIT_TYPE enum"
+description: "The C++ Build Insights SDK TRANSLATION_UNIT_TYPE enum reference."
+ms.date: "06/10/2021"
+helpviewer_keywords: ["C++ Build Insights", "C++ Build Insights SDK", "TRANSLATION_UNIT_TYPE", "throughput analysis", "build time analysis", "vcperf.exe"]
+---
+# TRANSLATION_UNIT_TYPE enum
+
+::: moniker range="<=msvc-140"
+
+The C++ Build Insights SDK is compatible with Visual Studio 2017 and above. To see the documentation for these versions, set the Visual Studio **Version** selector control for this article to Visual Studio 2017 or Visual Studio 2019. It's found at the top of the table of contents on this page.
+
+::: moniker-end
+::: moniker range=">=msvc-150"
+
+The `TRANSLATION_UNIT_TYPE` enum.
+
+## Members
+
+| Name | Value | Description |
+|--|--|--|
+| `TRANSLATION_UNIT_TYPE_MODULE` | 0 (0x00000000) | The type of this translation unit is a module interface. |
+| `TRANSLATION_UNIT_TYPE_HEADER_UNIT` | 1 (0x00000001) | The type of this translation unit is a header unit. |
+| `TRANSLATION_UNIT_TYPE_PRECOMPILED_HEADER` | 2 (0x00000002) | The type of this translation unit is a precompiled header (PCH). |
+
+## Remarks
+
+Used by the C SDK functions.
+
+::: moniker-end